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Finding the Fourth Proportional to 85,889.60, 118,528.88 and 64,341.17

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Solution

The fourth proportional to 85,889.60, 118,528.88 and 64,341.17 is: 88,791.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,889.60 : 118,528.88 = 64,341.17 : x
  2. Step 2: Convert to fraction form
    85,889.60/118,528.88 = 64,341.17/x
  3. Step 3: Cross multiply
    85,889.60x = 118,528.88 × 64,341.17
  4. Step 4: Simplify right side
    85,889.60x = 7,626,285,903.64
  5. Step 5: Solve for x
    x = 7,626,285,903.64/85,889.60
  6. Step 6: Final answer
    x = 88,791.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.